| Patents for F04C 3 - Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type (370) |
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| 12/13/1989 | CN1037946A Power conversion machine having pistons which are moved in turning movement in spherical housing |
| 12/05/1989 | US4884957 Displacement machine having displacement body and sealing members rotating on non-parallel axes |
| 05/17/1989 | CN2037781U Hydraulic motor with a radiation-type rotor |
| 12/07/1988 | EP0293413A1 Power conversion machine having pistons which are moved in a turning movement in a spherical housing. |
| 11/23/1988 | CN88201481U Positive-displacement pump with rolling-cone |
| 10/20/1988 | DE3712144A1 Screw conveyor |
| 09/20/1988 | US4772177 Screw pump |
| 08/10/1988 | EP0277114A1 Displacement machine. |
| 07/28/1988 | DE3700797A1 Semirotary pump |
| 06/02/1988 | WO1988003986A1 Power conversion machine having pistons which are moved in a turning movement in a spherical housing |
| 03/02/1988 | EP0257043A1 A mechanism |
| 01/28/1988 | WO1988000642A1 Displacement machine |
| 07/30/1987 | WO1987004495A1 A mechanism |
| 07/14/1987 | CA1224083A1 Reversible unidirectional flow rotary pump |
| 02/11/1987 | CN86104412A Bicorn rotator pump |
| 12/17/1986 | EP0205006A2 Magnetically driven cylinder pump |
| 09/10/1986 | EP0193530A1 Rotary piston machine |
| 05/13/1986 | US4588362 Reversible unidirectional flow rotary pump |
| 03/27/1986 | WO1986001856A1 Rotary piston machine |
| 09/10/1985 | US4540343 Spherical gear pump |
| 08/13/1985 | US4534719 Volumetric screw-and-pinion machine and a method for using the same |
| 05/15/1985 | EP0141503A1 Reversible unidirectional flow rotary pump |
| 03/14/1985 | WO1985001086A1 Reversible unidirectional flow rotary pump |
| 11/27/1984 | US4484872 Globoid-worm machine with tapered screw clearance near high pressure end seal |
| 10/09/1984 | US4475877 Globoid worm machine with metal ring in bearing housing |
| 09/11/1984 | US4470781 Positive displacement meshing screw machine |
| 09/11/1984 | US4470777 Volumetric machine with screw and pinion-wheels |
| 08/14/1984 | US4465445 Rotary pivoted vane pump |
| 06/27/1984 | EP0111619A1 Spherical gear pump |
| 12/13/1983 | CA1158620A1 Rotary compressor or engine |
| 08/31/1983 | EP0086781A1 A screw pump |
| 02/01/1983 | US4371320 Semi-rotary hydraulic pump |
| 10/14/1982 | WO1982003428A1 A screw pump |
| 10/27/1981 | US4296681 Fluid driven servomechanism |
| 06/23/1981 | US4274814 Rotative machine for fluids |
| 06/02/1981 | CA1102179A1 Rotative machine for fluids |
| 02/24/1981 | US4252511 Rotary compressor or motor with rotors having interengaging blades and recesses |
| 09/09/1980 | USRE30400 Globoid-worm compressors |
| 03/25/1980 | US4194437 Hydraulic servo mechanism |
| 01/22/1980 | US4184813 Fluid rotating machine with multiple displacement |
| 11/15/1979 | WO1979000919A1 Tapered seal for engines or the like |
| 07/24/1979 | CA1058964A1 Spherical piston machine |
| 07/17/1979 | CA1058446A1 Plate with passages for fluid rotative machines |
| 03/20/1979 | CA1050820A1 Fluid rotation machine with multiple displacement |
| 10/10/1978 | CA1040167A1 Fluid rotating machines with spiral-like passages and vane wheels |
| 10/10/1978 | CA1040166A1 Rotative machines for fluids with spiral-like passages and vane wheels |
| 09/19/1978 | CA1038836A1 Floating chamber machine |
| 08/15/1978 | US4106169 Seal lubrication in a rotary engine |
| 04/04/1978 | US4082485 Rotary vane-type pump |
| 12/06/1977 | US4061449 Fluid rotating machines with spiral-like passages and vane wheels |
| 06/07/1977 | US4028020 Oil seal for a rotary engine |
| 05/31/1977 | US4026662 Bearings for slant axis rotary mechanisms |
| 05/03/1977 | US4021165 Rotative machine for fluids with spiral-like passages and vane wheels |
| 05/03/1977 | US4021158 Spherical piston machine |
| 03/15/1977 | US4011722 Variable displacement hydraulic pump apparatus |
| 02/15/1977 | US4008014 Piston seals for rotary mechanisms |
| 02/01/1977 | US4005950 Bearings for slant axis rotary mechanisms |
| 12/28/1976 | US3999903 Combination thrust and journal bearing |
| 12/28/1976 | US3999902 Slant axis rotary mechanism with relieved apex portions |
| 11/02/1976 | US3989421 Housing construction for slant axis rotary mechanism |
| 10/26/1976 | US3988078 Seals for rotary engines |
| 10/12/1976 | US3985479 Rotary piston pump |
| 09/28/1976 | US3982861 Rotor construction for slant axis rotary mechanisms |
| 09/28/1976 | US3982860 Thrust bearings for slant axis rotary mechanisms |
| 09/21/1976 | US3981640 Slant axis rotary mechanism |
| 08/10/1976 | US3973469 Floating chamber machine |
| 08/03/1976 | US3972658 Housing for slant axis rotary mechanism |
| 08/03/1976 | US3972657 Slant axis rotary mechanism |
| 06/15/1976 | US3963386 Rotary motor with inflatable expansion member |
| 03/09/1976 | US3942384 Swashplate machines |